I disagree with the 50:50 split; I think you're giving away your equity unnecessarily. Understandably, you're not a marketing genius and you want to leverage th

I disagree with the 50:50 split; I think you're giving away your equity unnecessarily. Understandably, you're not a marketing genius and you want to leverage the marketing potential of someone else who is skilled, knowledgeable, and gifted in that field, but you can do much better than 50:50. This is your baby, be confident your product will attract investment (time, money, other resources) from others than those who are looking for an easy paycheque. You deserve to be rewarded for your ingenuity, intellectual property, and sweat equity. You can find marketing genius in every corner of the internet - don't give away your future and profit on a lack of faith. Personally, I would consider discussing your product with a company such as Homebrew (https://homebrew.co/); https://homebrew.co/); they're in the business of helping start-ups such as yourself achieve success. A quick edit/addition: regarding a fair split if you're going to hire/partner with the person you're currently considering. In that situation I would default to a merit-based approach. Base pay plus commission or stock options for every deal the person puts together, or for every predetermined financial goal achieved. Let him put in the time, as you have, to earn his share and prove his worth.